If u do a backup either from the system menu or from the control panel, then u shutdown the pc with the cheched box backup checked in dslexit, the system gives an error, this is because the first backup leaves the file /tmp/backup_status that is owned by root.

After more testing I was still seeing some failures trying to pass only the "$?" so instead I test for a non-empty /tmp/backup_status. I also added more text to the various pop ups. Since we have rootless mounts I would rather do less sudo when possible. Anyway, here is 4.4.10